When extended info is requested (-e option) one will be able to observe
arrows in the output, like this:
ESTAB 0 0 127.0.0.1:41705 127.0.0.1:12345 ino:143321 sk:ffff88003a8cea00 -->
ESTAB 0 0 127.0.0.1:46925 127.0.0.1:12346 ino:143322 sk:ffff88003a8ce4c0 <--
ESTAB 0 0 127.0.0.1:51678 127.0.0.1:12347 ino:143323 sk:ffff88003a8cdf80 ---
ESTAB 0 0 127.0.0.1:46911 127.0.0.1:12348 ino:143324 sk:ffff88003b7f05c0 <->
for SHUT_RD, SHUT_WR, SHUT_RDWR and non-shutdown sockets respectively.
The respective nlattrs in *_diag messages has appeared in Linux v3.7 and
are already present in ss's headers.
Signed-off-by: Pavel Emelyanov <xemul@parallels.com>
5b81604753